code: def test_getitem_bad(self) -> None:
      with pytest.raises(ValueError):
          _TestGroup[10.2]
      with pytest.raises(ValueError):
          _TestGroup[(1,)]
      with pytest.raises(ValueError):
          _TestGroup[[1]]
  
file_path: bokeh/tests/unit/bokeh/colors/test_util__colors.py
imports: from __future__ import annotations
  import pytest
  from bokeh.colors import named
  import bokeh.colors.util
label_desc: Use image node_id 5 for calling the Test_ColorGroup obj's underlying member method code with example usage: obj.test_getitem_bad() without return types